The Velvet Underground played Boston on March, 15 1969 at famed music venue The Boston Tea Party. Someone put a microphone inside Lou Reed’s amplifier and the result is pretty magnificent.

Bootlegged as The Legendary Guitar Amp Tapes, the recordings are formidable in their unadulterated rock and roll fire and fury and a revelation for anyone who hasn’t paid close attention to Reed’s dynamic guitar playing which in this set is a monolithic roar, a pulverizing electronic kaiju (strange beast) grinding whole universes into pebble and sand.

Listen as Louzilla annihilates the planets and their multiple moons with blasts of amplified frequencies as sublime as they are world crushing. This is the sound of heavy metal thunder!